Postfix installation Step by step I have already posted on Zimbra mail service, now i am going to share how to install and configure postfix mail server using devocot and squrell mail service, suggest you go into detail study of post fix and other mail server before going to install and use, and different mail protocol i will publish all these on my later edition.Here i am going to tell you some future of post fix mail server,and why we choose postfix. What is post fix? Postfix is an open-source Mail Transport Agent ( MTA ), which supports protocols like LDAP, SMTP AUTH (SASL), and TLS. Operating systems: Postfix runs on every Unix and Linux Operating syst em,It is the default MTA of Linux and Ubuntu operating systems.To install Post fix first we need to uninstall default post fix. Architecture: Postfix consists of a combination of server programs that run in the background, and client pr...
Create PPPOE(DSL) Connection on Linux I had faced lot of hurdle while setting pppoe connection on Ubuntu 18.4LTs. interesting thing is that not found any reliable link on google for that,here is step wise detail of setting dsl connection on Linux Prerequisites: ANI is my service provider Connection name is provide by ISP Username and password provided by ISP (ANI) IP and domain also provide by ISP Step 1create connection name: keenable@xxx:~$ nmcli con edit type pppoe con-name ANI Step2: Add user name. nmcli> set pppoe.username aa0003@elixir Step3:nmcli> set pppoe.password xxxxx step:Add service nmcli> set pppoe.servicename ANI Step4:set ip in network>ani>setting Step5: check the user name and other detail.and edit In ipv4 we can provide ip and domain which provided by isp
Docker private registry Why we need pvt registry "Security, minimize internet load, speed, control We need to setup registry in three stage , stage one simple stage two secure (with ssl) stage three with authentication Stage one: Step: create directories, need to create below directories a. Create a directory to store docker image b. create a certificate directory c. Auth directory Step :Run a docker registry container Create a container without volume with below command sudo docker run -d -p 5000:5000 --name local-registry registry:2 below is screen shot check in browser: tag the image, command to tag image sudo docker tag centos:7 127.0.0.1:5000/centos:7 Step Push image and check the browser again In ss centos is available, also in container it show as below Stage two Step: create a directory with the name of "docker-registry" then create two direcotries inside it certs data Step: then generate certificate inside certs direct...
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